NCT04246138

Brief Summary

The overall aim of the study is to compare navigated kinematically aligned total knee replacements (KA TKR) with navigated mechanically aligned TKR (MA TKR) in terms of function and ROM The objectives are therefore:

  1. 1.To compare the functional outcomes of KA TKR versus MA TKR performed using navigation technique
  2. 2.To compare ROM and alignment of knee in the two groups

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
8mo left

Started Feb 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress93%
Feb 2018Dec 2026

Study Start

First participant enrolled

February 18, 2018

Completed
1.9 years until next milestone

First Submitted

Initial submission to the registry

January 27, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

January 29, 2020

Completed
6.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

March 18, 2026

Status Verified

March 1, 2026

Enrollment Period

8.9 years

First QC Date

January 27, 2020

Last Update Submit

March 16, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • KOOS

    knee osteoarthritis outcome score preop and at 12 months

    12 months

Secondary Outcomes (8)

  • • Knee ROM and stability (pre-op and at 1 year postop)

    1 year

  • • Oxford knee society score

    1 year

  • • SF-12

    1 year

  • • EQ5D

    1 year

  • • Time taken for operation (tourniquest time)

    1 year

  • +3 more secondary outcomes

Study Arms (2)

kinematically alignment

ACTIVE COMPARATOR
Procedure: alignment types

mechanical alignment

ACTIVE COMPARATOR
Procedure: alignment types

Interventions

types of alignment mechanical versus kinematic of TKA to be studied

kinematically alignmentmechanical alignment

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age between 18 and 90 years
  • Diagnosis of degenerative osteoarthritis

You may not qualify if:

  • o a)Post traumatic arthritis
  • b)Varus /valgus deformity of more than 20 degrees
  • flexion contracture of more than 20 degrees
  • reduced ability to make decision like dementia patients/children
  • e)if they had undergone any orthopaedic procedure to the lower limbs within the last one year
  • h) neuromuscular or neurosensory deficiency
  • I)inflammatory arthritis of the knee joint
  • patients who suffered a complication which might influence the final outcome such as a deep infection, fracture or dysfunction of the extensor mechanism in post-operative period. However the complication rate data will be analysed and reported.
  • pregnancy
  • patients involved in other clinical trials within last 6 months prior to being recruited in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hull University teaching hospitals

Hull, East Yorkshire, HU3 2JZ, United Kingdom

RECRUITING

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
randomisation done by software
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 27, 2020

First Posted

January 29, 2020

Study Start

February 18, 2018

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

March 18, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations